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This study compared the efficacy of PF-based and CROSS-based neoadjuvant chemoradiotherapy for ESCC.PF-based regimen has been a standard regimen for ESCC, but it has been replaced by the CROSS regimen in the past few years, despite no prospective head-to-head comparative study has been performed.This is a single center retrospective study. Records of all ESCC patients who have received neoadjuvant PF with 40 Gy radiotherapy in 20 daily fractions (PFRT Group) or CROSS with 41.4 Gy radiotherapy in 23 daily fractions (CROSS Group) during the period 2002 to 2019 were retrieved. Propensity score matching (1:1) was performed to minimize baseline differences. The primary and secondary endpoints were overall survival and clinicopathological response. Subgroup analysis ("CROSS Eligibility") was performed based on tumor length, cT-stage, cM-stage, age, and performance status.One hundred (out of 109) patients (CROSS group) and propensity score matched 100 (out of 210) patients (PFRT group) were included. Esophagectomy rates in CROSS and PFRT group were 69% and 76%, respectively (P = 0.268). R0 resection rates were 85.5% and 81.6% (P = 0.525) and the pathological complete remission rates were 24.6% and 35.5% (P = 0.154). By intention-to-treat, the median survival was 16.7 and 32.7 months (P = 0.083). For "CROSS Eligible subgroup," the median survival of the CROSS and PFRT group was 21.6 versus 44.9 months (P = 0.093).There is no statistically difference in survival or clinicopathological outcome between both groups, but the trend favors PFRT. Prospective head-to-head comparison and novel strategies to improve the outcomes in resectable ESCC are warranted.

Patients with gastric intestinal metaplasia and dysplasia are at increased risk of gastric cancer development. We tested the feasibility of using endoscopic radiofrequency ablation for the treatment of dysplasia and metaplasia in the stomach.Patients who had histologically confirmed low-grade gastric dysplasia or IM were recruited. Endoscopic RFA was performed at 8 week-intervals for a maximum of 3 sessions. All patients were followed up by endoscopy until 12 months post-RFA. The primary outcome was the complete eradication of dysplasia or IM on follow-up. Secondary outcome was adverse events related to RFA.A total of 12 patients were recruited. Four patients had low-grade dysplasia and the remaining 8 patients had non-dysplastic IM at baseline. At one year after RFA, complete eradication of dysplasia was noted in four patients with low-grade dysplasia (100%). Gastric IM persisted in all patients with baseline metaplasia but the severity of IM improved in 6 (75%) patients. Endoscopic RFA was safe with minimal complications encountered.RFA successfully eradicated low-grade dysplasia of the stomach. Gastric IM however persisted after RFA but most patients had evidence of histological improvement on follow up.